RCA CTC169CH5 Diagram

SAFETY PRECASAFETY PRECA

SAFETY PRECA

SAFETY PRECASAFETY PRECA

SERSER

VICE VICE

SER

SERSER

Only qualified service technicians who are familiar with safety checks and guidelines should perform service work. Before replacing parts, disconnect power source to protect electrostatically sensitive parts. Do not attempt to modify any circuit unless so recommended by the manufacturer. When servicing the receiver, use an isolation transformer between the line cord and power receptacle.

SERSER

SER

SERSER

Use EXTREME CAUTION when servicing the high voltage circuits. To discharge static high voltage, connect a 10K ohms resistor in series with a test lead between the receiver ground and CRT anode lead. DO NOT lift the CRT by the neck. Always wear shatterproof goggles when handling the CRT to protect eyes in case of implosion.

X-RAX-RA

X-RA

X-RAX-RA

Be aware of the instructions and procedures covering X-ray radiation. In solid-state receivers and monitors, the CRT is the only potential source of X-rays. Keep an accurate high voltage meter available at all times. Check meter calibration periodically. Whenever servicing a receiver, check the high voltage at various brightness levels to be sure it is regulating properly. Keep high voltage at rated value, NO HIGHER. Excessive high voltage may cause X-ray radiation or failure of associated components. DO NOT depend on protection circuits to keep voltage at rated value. When troubleshooting a receiver with excessive high voltage, avoid close contact with the CRT. DO NOT operate the receiver longer than necessary. To locate the cause of excessive high voltage, use a variable AC transformer to regulate voltage. In present receivers, many electrical and mechanical components have safety related characteristics which are not detectable by visual inspection. Such components are identified by a # on both the schematic and the parts list. For SAFETY, use only equivalent replacement parts when replacing these components.

GENERAL GUIDELINESGENERAL GUIDELINES

GENERAL GUIDELINES

GENERAL GUIDELINESGENERAL GUIDELINES

Perform a final SAFETY CHECK before returning receiver to customer. Check repaired area for poorly soldered connections, and check entire circuit board for solder splashes. Check board wiring for pinched wires or wires contacting any high wattage resistors. Check that all control knobs, shields, covers, grounds, and mounting hardware have been replaced. Be sure to replace all insulators and restore proper lead dress.

WARNINGWARNING

VICE

WARNING

VICE VICE

WARNINGWARNING

VICING VICING

VICING

VICING VICING

Y RADIAY RADIA

Y RADIA

Y RADIAY RADIA

THE HIGH THE HIGH

THE HIGH

THE HIGH THE HIGH

TION AND HIGH TION AND HIGH

TION AND HIGH

TION AND HIGH TION AND HIGH

OLOL

GE AND CRGE AND CR

GE AND CR

GE AND CRGE AND CR

OLOL

GE LIMITSGE LIMITS

GE LIMITS

GE LIMITSGE LIMITS

UTIONSUTIONS

UTIONS

UTIONSUTIONS

SAFETY CHECKS — FIRE AND SHOCK HAZARDSAFETY CHECKS — FIRE AND SHOCK HAZARD

SAFETY CHECKS — FIRE AND SHOCK HAZARD

SAFETY CHECKS — FIRE AND SHOCK HAZARDSAFETY CHECKS — FIRE AND SHOCK HAZARD

Cold LeakaCold Leaka

Cold Leaka

Cold LeakaCold Leaka

Unplug the AC cord, connect a jumper across the plug prongs, and turn the power switch on (if applicable). Use an ohmmeter to measure the resistance between the jumped AC plug and any exposed metal cabinet parts such as antenna screw heads, control shafts, or handle brackets. Exposed metal parts with a return path should measure between 1M ohms and 5.2M ohms. Parts without a return path must measure infinity.

Hot LeakaHot Leaka

Hot Leaka

Hot LeakaHot Leaka

Plug the AC cord directly into an AC outlet. DO NOT use an isolation transformer. Use a 1500 ohms, 10W resistor in parallel with a .15µF capacitor to connect between any exposed metal parts on the receiver and a good earth ground. (See figure below.) Use an AC voltmeter with at least 5000 ohms per volt sensitivity to measure the voltage across the resistor. Check all exposed metal parts and measure voltage at each point. Voltage measurements should not exceed .75VAC, 500µA. Any value exceeding this limit constitutes a potential shock hazard and must be corrected. If the AC plug is not polarized, reverse the AC plug and repeat exposed metal part voltage measurement at each point.

e Chece Chec

e Chec

e Chece Chec

ks fks f

ks f

ks fks f

e Current Chece Current Chec

e Current Chec

e Current Chece Current Chec

or Receiveror Receiver

or Receiver

or Receiveror Receiver

s with Isolated Grs with Isolated Gr

s with Isolated Gr

s with Isolated Grs with Isolated Gr

oundound

ound

oundound

SET 4544SET 4544

SET 4544

High Voltage Shutdown Test .................. 1

IC Functions ........................................... 1

Important Parts Information ................... 2

Miscellaneous Adjustments .................... 1

New Circuit ............................................ 1

Parts List ............................................. 7, 8

Placement Chart ................................. 5, 6

Safety Precautions .................................. 1

Schematic Component Location ............ 6

Schematic Notes ..................................... 2

Schematics

Test Equipment....................................... 2

Tuner Information .................................. 1

INDEXINDEX

INDEX

INDEXINDEX

Audio ............................................... 3

CRT ................................................. 3

PIP ................................................... 4

Power Supply .................................. 2

Surround Audio ............................... 5

System Control ................................ 1

Television ........................................ 2

Tuner ............................................... 5

Video Switching/Digital Comb ....... 4

Technical Service Data

PRPR

OSCANOSCAN

OSCAN

PRPR

OSCANOSCAN

Model PS27152FX1 (Chassis CTC169CE5)Model PS27152FX1 (Chassis CTC169CE5)

Model PS27152FX1 (Chassis CTC169CE5)

Model PS27152FX1 (Chassis CTC169CE5)Model PS27152FX1 (Chassis CTC169CE5)

Representative Model

or seror ser

or ser

or seror ser

Essential coEssential co

Essential co

Essential coEssential co

vicing a televicing a tele

vicing a tele

vicing a televicing a tele

ScSc

hematicshematics

•

hematics

ScSc

hematicshematics

veravera

vera

veravera

vision receivervision receiver

vision receiver

vision receivervision receiver

......

...

......

4544

HIGH HIGH

OLOL

HIGH

HIGH HIGH

Apply 120VAC to set, turn set on, and adjust brightness and contrast to maximum. Short XRP-1 to XRP-2. The set should shut down and then cycle on and off. If the set does not shut down and then cycle on and off, the shutdown circuoit requires repair. To resume normal operation remove the short from XRP-1 to XRP-2.

The listing of any available replacement part herein in no case constitutes a recommendation, warranty, or guarantee by SAMS Technical Publishing as to the quality and suitability of such replacement part. The numbers of the listed parts have been compiled from information furnished to SAMS Technical Publishing by the manufacturers of the specific type of replacement part listed.

Reproduction or use, without express permission, of editorial or pictorial content, in any manner, is prohibited. No patent liability is assumed with respect to the use of the information contained herein.

5436 West 78th Street Indianapolis, IN 46268-4149

Printed in the United States of America 5 4 3 2 1

e 1e 1

e 1

e 1e 1

SET 4544 SET 4544

SET 4544

SET 4544 SET 4544

GE SHUTDOGE SHUTDO

GE SHUTDO

OLOL

GE SHUTDOGE SHUTDO

WN WN

TESTTEST

TEST

WN WN

TESTTEST

02PF01843

UPC

HERE

4544

MODELPS27152FX1 (CHASSIS CTC169CE5)MODELPS27152FX1 (CHASSIS CTC169CE5)

MODELPS27152FX1 (CHASSIS CTC169CE5)

OSCANOSCAN

OSCAN PRPR

PRPR

For Supplier AdFor Supplier Ad

For Supplier Ad

For Supplier AdFor Supplier Ad

See PHOSee PHO

See PHO

See PHOSee PHO

OFOF

CT AnnCT Ann

CT Ann

CT AnnCT Ann

dress,dress,

dress,

dress,dress,

ual Indeual Inde

ual Inde

ual Indeual Inde

Component locationsComponent locations

•

Component locations

Component locationsComponent locations

arar

ts listts list

•

ts list

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ts listts list

Coverage includes these additional models and chassis:

ModelsModels

Models

ModelsModels

PS27152JX1 CTC169CE5 PS27153FX1 CTC169CH5 PS27153JX1 CTC169CH5

FEBRFEBR

ARAR

Y Y

FEBR

FEBRFEBR

2002 SET 4544 2002 SET 4544

2002 SET 4544

ARAR

Y Y

2002 SET 4544 2002 SET 4544

ChassisChassis

Chassis

ChassisChassis

4544

e 1e 1

e 1

e 1e 1

SET 4544 SET 4544

SET 4544

SET 4544 SET 4544

TUNER INFORMATION

TUNER TUNER

TUNER

TUNER TUNER

PinPin

1 (AGC) 5.4V 4.1V 7.9V 2 (+12V) 12.0V 12.0V 12.0V 3 (IF) 11.7V 11.6V 11.7V 4 (+33V) 33.0V 33.0V 33.0V 5 (-12.0V) -12.0V -12.0V -12.0V 6 (+5V) 5.0V 5.0V 5.0V 7 (SDA) 5.0V 5.0V 5.0V 8 (SCK) 5.0V 5.0V 5.0V 9 (NC) 0V 0V 0V 10 (LOGIC) 0V 0V 0V 11 (B+) 12.0V 12.0V 12.0V

Note: VHF Low Band voltages taken on channel 2.

VHF High Band voltages taken on channel 7. UHF Band voltages taken on channel 14

VHF LoVHF Lo

VHF Lo

VHF LoVHF Lo

OLOL

w Bandw Band

w Band

w Bandw Band

GE CHARGE CHAR

GE CHAR

GE CHARGE CHAR

VHF High BandVHF High Band

VHF High Band

VHF High BandVHF High Band

UHF BandUHF Band

UHF Band

UHF BandUHF Band

TUNER TUNER

TUNER

TUNER TUNER

(2)

(4)

(6)

(8)

(10)

TERMINAL GUIDETERMINAL GUIDE

TERMINAL GUIDE

TERMINAL GUIDETERMINAL GUIDE

(1)

(3)

(5)

(7)

(9)

MISCELLANEOUS ADJUSTMENTS

(11)

SET 4544 PSET 4544 P

SET 4544 P

SET 4544 PSET 4544 P

e 1e 1

e 1

e 1e 1

PRPR

PRPR OSCAN MODEL PS27152FX1 (CHASSIS CTC169CE5)

OSCAN MODEL PS27152FX1 (CHASSIS CTC169CE5)OSCAN MODEL PS27152FX1 (CHASSIS CTC169CE5)

SET 4544 PSET 4544 P

SET 4544 P

SET 4544 PSET 4544 P

e 1e 1

e 1

e 1e 1

e 2e 2

e 2

e 2e 2

SET 4544 SET 4544

SET 4544

SET 4544 SET 4544

SET 4544 PSET 4544 P

SET 4544 P

SET 4544 PSET 4544 P

e 2e 2

e 2

e 2e 2

e 2

e 2e 2

SET 4544 SET 4544

SET 4544

SET 4544 SET 4544

ImporImpor

tant Ptant P

arar

ts Infts Inf

Impor

tant P

ImporImpor

ν The parts listed here are those not usually available from a well-stocked supply cabinet or bin.

ν Where items may be replaced with equivalent parts, several alternates are shown from participating vendors.

ν On the parts lists, safety items are marked with a

these items.

ν When ordering parts, state the model number, part number, and description.

tant Ptant P

arar

# #

# to remind you that only exact replacements are recommended for

# #

ts Inf

ts Infts Inf

ormationormation

ormation

ormationormation

Obtaining PObtaining P

Obtaining P

Obtaining PObtaining P

Many of these parts are available from your local Sams authorized distributor or the manufacturer of the equipment. Call Sams for the name of your nearest distributor:

arar

tsts

800-428-7267

Or consult the Sams

Information on test equipment and replacement parts is listed in these pages for the following participating vendors. Consult the Sams

ν NTE Electronics, Inc. (NTE)

Test equipment listed by participating manufacturer illustrates typical or equivalent equipment used by Sams engineers to obtain measurements. This equipment is compatible with most types used by field service technicians.

Annual Index

for the address of the original equipment manufacturer.

arar

ticipating ticipating

ticipating

arar

ticipating ticipating

for their current address.

TEST EQTEST EQ

TEST EQ

TEST EQTEST EQ

endorendor

endor

endorendor

ν Sencore, Inc.

UIPMENTUIPMENT

UIPMENT

UIPMENTUIPMENT

PRPR

PRPR OSCAN MODEL PS27152FX1 (CHASSIS CTC169CE5)

OSCAN MODEL PS27152FX1 (CHASSIS CTC169CE5)OSCAN MODEL PS27152FX1 (CHASSIS CTC169CE5)

EquipmentEquipment

Equipment

EquipmentEquipment

Oscilloscope SC3100 Generators

RGB CM2125 Multiburst Signal VG91 Color Bar VG91

TV Stereo VG91 Digital VOM SC3100 Frequency Meter SC3100 Hi-Voltage Probe HP200 Accessory Probes TP212

Sencore No.Sencore No.

Sencore No.

Sencore No.Sencore No.

EquipmentEquipment

Equipment

EquipmentEquipment

Isolation Transformer PR570 Capacitance Analyzer LC102 CRT Analyzer CR7000 AC Leakage Tester PR570 Inductance Analyzer LC102 Flyback Yoke Tester TVA92 Field Strength Meter SL753 Transistor Tester TF46 Horizontal Analyzer HA-2500 Video Analyzer VG91, TVA92

Sencore No.Sencore No.

Sencore No.

Sencore No.Sencore No.

SET 4544 PSET 4544 P

SET 4544 P

SET 4544 PSET 4544 P

e 2e 2

e 2

e 2e 2

e 3e 3

e 3

e 3e 3

SET 4544 SET 4544

SET 4544

SET 4544 SET 4544

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